Ans question no 5 and 6

Ans question no 5 and 6 130 Structure of Atom 5. The energies El and E2 of two radiations are 25 ev and 50 ev respectively. The relation between their wavelengths i.e. and will be 2 2 6. Ifn = 6, the correct sequence of filling of electronS will be 7. The value of Planck's constant is 6.63 x 10-34 Js. The speed of light is 3 x 1017 nm s-l. Which value is closest to the wavelength in nanometer of e quantum of light with frequency of 6 x 1015 s-l? (1) 25 (3) 75 (2) 50 (4) 10

Dear Student,


5) E= hcλor, E1E2=λ2λ1or, 2550=λ2λ1or, λ2λ1=12or, λ1=2λ2 The correct answer is (3)6) According to Aufbau's principle, if n=6 then electronic configuration will be n(2)

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